Find the following points on the graph of Y=x^2 :
问题描述：
Find the following points on the graph of Y=x^2 :
The point where the graph has slope 3.
The point where the tangent line is parallel to the line 2x+y=3.
答
The point where the graph has slope 3.
y'=2x=3,x=3/2 (3/2,9/4)
The point where the tangent line is parallel to the line 2x+y=3
k=y'=2x=-2,x=-1 (-1,1)